ML20076A803
| ML20076A803 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 02/26/1979 |
| From: | Counsil W NORTHEAST UTILITIES |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 7904110062 | |
| Download: ML20076A803 (6) | |
Text
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MDRTHI!A!Fr IFFII.FFII!S w cewtimw ae ta cowa.'
P.O. BOX 270
$$sYrIbe HARTFORD. CONNECTICUT 06101 N*~asr$N, i,s(([$ww
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February 2, 1979
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Docket No.' 50-336 h
Office of Iaspection and Enforcement Attn:
Mr. B. H. Grier, Director Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 oV
References:
(1)
J. P. O'Reilly letter to D. C. Switzer dated November 24, 1976.
(2)
D. C. Switzer letter to J. P. O'Reilly dated December 28, 1976.
(3)
D. C. Switzer letter to B. H. Grier dated February 28, 1978.
Gentlemen:
l Millstone Nuclear Power Station, Unit No. 2 Stagnant Location Chloride Test Program Reference (1) set forth a program for assuring the continued integrity of safety-related piping systems which are not frequently flushed or which con-tain non-flowing liquids. Reference (2) proposed a chemical sampling program n responsive to Reference (1), and Reference (3) transmitted the results of the V first year's stagnant location test results.
Northeast Nuclear Energy Company (NNECO) has now completed the second year's monitoring program and the results of the analysis are attached. There have been no unacceptable conditions noted since the inception of this program.
As stated in Reference (2), NNECO will be implementing an augmented Inservice Inspection Program (on April 26, 1979) which will include the tanks and piping systems presently being monitored under the stagnant location test program.
Therefore, NNECO intends to conclude the supplementary chemical monitoring at this time although the on-going plant chemical surveillance activity on the Refueling Water Storage Tank and the Safety Injection Tanks will continue.
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Reporting of adverse findings resulting from non-destructive examinations j
of the affected piping systems will be reported to the NRC Regional Office j
in a timely fashion as required by the Technical Specifications.
l Very truly yours, i
4 NORTHEAST NUCLEAR ENERGY COMPANY a
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Counsil l
Vice President a
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j Docket No. 50-336 l
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ATTACIMENT 1 i
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O MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 STAGNANT LOCATION CHLORIDE TEST RESULTS FOR 1978 i
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MILLSTONE NUCLEAR POWER STATION - UNIT No. 2
" Stagnant Location Chloride Test" 04-19-78 Shutdown Heat Exchanger Drains Valve No. 2-CS-70 (50 ppb chloride Valve No. 2-CS-71
< 50 ppb chloride 04-19-78 "A" HPSI Pump Drain (Discharge Line) 4
<,50 ppb chloride OV 04-19-78 "B" LPSI Pump Drain (Pump Casing) 4,'50 ppb chloride 04-19-78 BAST Gravity feed Line to VCT Valve No. 2-CH-189
( 50 ppb chloride 04-19-78 Containment Spray Valve No. 2-CS-049 (50ppbchloride O
04-19-78 Coatair aent Spray Valve No. 2-CS-055 (50 ppb chloride
MILLSTONE NUCLEAR POWER STATION, UNIT No. 2 Refueling Water Storage Tank Chloride Analysis Results I
1978 Week Ending PPB Chloride Week Ending PFB Chloride 1-7 N/A 7-8 4 50 1-14
<50 7-15 (50 1-21 N/A 7-22 (50 1-28 N/A 7-29 (50 2-4 N/A 8-5 450 2-11 N/A 8-12 450 2-18 N/A 8-19 (50
^
2-25 (50 8-26 (50 3-4
<50 9-2 (50 3-11
<50 9-9 (50 3-18
.10 ppm 9-16 (50 3-25
.10 ppm 9-23 450 4-1
.05 ppm 9-30 (50 4-8
.05 ppm 10-7 (50 4-15
.05 ppm 10-14 (50 4-22 (50 10-21 450 4-29
.05 ppn 10-28 (50 5-6
( 50 11-4 (50 5-13 450 11-11
( 50 5-20
<50 11-18 4.50 5-27 (50 11-25 4 50 6-3 (50 12-2 4 50 6-10
.05 ppm 12-9 40 0
6-17
< 50 12-16
< 50 6-24 (50 12-23
( 50 7-1 (50 12-30
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MILLSTONE NUCLEAR POWER STATION - UNIT No. 2 SIT Chloride Analysis 1978 Month Safety Injection Tank A
B C
D January PLANT IN M0DE
- 6 February PLANT IN M0DE
- 6 March 4 50
( 50
( 50
( 50 April
( 50
( 50 4 50 4 50 May
( 50
( 50
( 50
{ 50 June
( 50
( 50 4 50
( 50 July
( 50
( 50
( 50
( 50 August
( 50
( 50
( 50
( 50 Septenber
( 50 (100
( 50
( 50 October
( 50
( 50
( 50
( 50 November (50
( 50
( 50
( 50 December (50
( 50
( 50
(,50 l
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